[Caml-list] Str Shortest Match

[Caml-list] Str Shortest Match

[Nicolas Cannasse]

Hi everyone,

Is there a way to do a shortest regular expression matching using Str ?
In Perl and many RE engines, this is done by using  .*? but it does not
seems to work on Str.

let s = "yayybyyb" in
let r = Str.regexp "a\(.*?\)b" in
Str.search_forward r s 0;
Str.matched_group 1 s;

=> "yybyy" instead of "yy"

Nicolas Cannasse

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Re: [Caml-list] Str Shortest Match

[Dmitry Bely]

"Nicolas Cannasse" <warplayer@free.fr> writes:

> Is there a way to do a shortest regular expression matching using Str ?
> In Perl and many RE engines, this is done by using  .*? but it does not
> seems to work on Str.
>
> let s = "yayybyyb" in
> let r = Str.regexp "a\(.*?\)b" in
> Str.search_forward r s 0;
> Str.matched_group 1 s;
>
> => "yybyy" instead of "yy"

Why not to use Pcre module then?

- Dmitry Bely


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